PDF(680 KB)
Wet-dry changes in the borderland of Shaanxi, Gansu and Ningxia from 1208 to 1369 based on historical records
地理学报(英文版) ›› 2009, Vol. 19 ›› Issue (6) : 750-764.
PDF(680 KB)
PDF(680 KB)
Wet-dry changes in the borderland of Shaanxi, Gansu and Ningxia from 1208 to 1369 based on historical records
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